USGS - science for a changing world

Alaska Science Center

white dothome: white dotscience: white dotproducts: white dotoutreach/media: white dotcontact us:   white dotinternal:
All USGS This site only

Brenda E. Ballachey

Title: Research Physiologist
Address: 4210 University Dr., Anchorage, AK 99508-4626
Phone: (403) 288-9184
Fax: (907) 786-7150
Email: bballachey@usgs.gov

Image of Brenda E. Ballachey

Education and/or Training

Ph.D.1985Oregon State University, Corvallis, ORAnimal Breeding and Genetics
M.S.1980Colorado State University, Ft. Collins, COAnimal Sciences
B.S.1974Colorado State University, Ft. Collins, COAnimal Science

Areas of Specialization and/or Research Interests

Population status and indices of population condition; population, physiological and ecological effects of oil exposure on marine mammals and coastal ecosystems; environmental toxicology, physiology and genetics of marine mammals.

Professional Experience

1990 - PresentResearch Physiologist, USGS, Alaska Science Center, Anchorage, Alaska
1989 - 1990Biologist, USGS, Alaska Science Center, Anchorage, Alaska
1987 - 1989Staff Officer, Board on Agriculture, National Research Council, Washington, D.C.
1986 - 1987Research Associate, Department of Chemistry, South Dakota State University, Brookings, South Dakota
1985 - 1985Instructor, Department of Animal Science, Oregon State University, Corvallis, Oregon
1981 - 1985Graduate Research Assistant, Department of Animal Science, Oregon State University, Corvallis, Oregon
1977 - 1980Graduate Research Assistant, Department of Animal Science, Colorado State University, Ft. Collins, Colorado

Professional Activities and/or Memberships

Society for Marine Mammalogy
The Wildlife Society
Society of Environmental Toxicology and Chemistry

Websites of Interest

Sea Otter and Nearshore Marine Ecology Research

Publications

Total pubs: 52

Ballachey, B. E., J. L. Bodkin, D. Esler, and S. D. Rice. 2014. Lessons from the 1989 Exxon Valdez oil spill: A biological perspective. Pages 181-197 in Alford, J. B., M. S. Peterson, and C. C. Green (eds.), Impacts of Oil Spill Disasters on Marine Habitats and Fisheries in North America. CRC Press, 320 p. [Details] [Full Publication]

Ballachey, B. E., D. H. Monson, G. G. Esslinger, K. A. Kloecker, J. L. Bodkin, L. Bowen, and A. K. Miles. 2014. 2013 update on sea otter studies to assess recovery from the 1989 Exxon Valdez oil spill, Prince William Sound, Alaska. USGS Open-File Report 2014-1030, 40 p. doi:10.3133/ofr20141030 [Details] [Full Publication]

Ballachey, B. E., J. L. Bodkin, and D. H. Monson. 2013. Quantifying long-term risks to sea otters from the 1989 Exxon Valdez oil spill: Reply to Harwell & Gentile (2013). Marine Ecology Progress Series 488:297-301. doi:10.3354/meps10498 [Details] [Full Publication]

Miles, A. K., L. Bowen, B. E. Ballachey, J. L. Bodkin, M. Murray, J. A. Estes, R. A. Keister, and J. L. Stott. 2012. Variations of transcript profiles between sea otters Enhydra lutris from Prince William Sound, Alaska, and clinically normal reference otters. Marine Ecology Progress Series. doi:10.3354/meps09572 [Details] [Full Publication]

Bowen, L., A. K. Miles, M. Murray, M. Haulena, J. Tuttle, W. VanBonn, L. Adams, J. L. Bodkin, B. E. Ballachey, M. T. Tinker, R. A. Keister, and J. L. Stott. 2012. Gene transcription in sea otters (Enhydra lutris); Development of a diagnostic tool for sea otter and ecosystem health. Molecular Ecology Resources 12(1):67-74. doi:10.1111/j.1755-0998.2011.03060.x [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, H. A. Coletti, G. G. Esslinger, K. A. Kloecker, S. D. Rice, J. A. Reed, and D. H. Monson. 2012. Long-term effects of the Exxon Valdez oil spill: Sea otter foraging in the intertidal as a pathway of exposure to lingering oil. Marine Ecology Progress Series 447:273-287. doi:10.3354/meps09523 [Details] [Full Publication]

Monson, D. H., D. F. Doak, B. E. Ballachey, and J. L. Bodkin. 2011. Could residual oil from the Exxon Valdez spill create a long-term population "sink" for sea otters in Alaska? . Ecological Applications 21(8):2917-2932. doi:10.1890/11-0152.1 [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, and G. G. Esslinger. 2011. Trends in sea otter population abundance in western Prince William Sound, Alaska: Progress toward recovery following the 1989 Exxon Valdez oil spill. USGS Scientific Investigations Report 2011-5213, 14 p. [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, and G. G. Esslinger. 2011. Synthesis of nearshore recovery following the 1989 Exxon Valdez oil spill: Trends in sea otter population abundance in Western Prince William Sound. Exxon Valdez Oil Spill Restoration Project Final Report, (Restoration Projects 070808, 070808A, and 090808), U. S. Geological Survey, Alaska Science Center, Anchorage, Alaska. [Details]

Esler, D., B. E. Ballachey, K. A. Trust, S. A. Iverson, J. A. Reed, A. K. Miles, J. D. Henderson, B. W. Wilson, B. R. Woodin, J. J. Stegeman, M. McAdie, and D. M. Mulcahy. 2011. Cytochrome P4501A biomarker indication of the timeline of chronic exposure of Barrow's Goldeneye to residual Exxon Valdez oil. Marine Pollution Bulletin 62:609-614. [Details]

Bodkin, J. L. and B. E. Ballachey. 2010. Modeling the effects of mortality on sea otter populations. USGS Scientific Investigations Report 2010-5096, 12 p. [Details] [Full Publication]

Ricca, M., A. K. Miles, B. E. Ballachey, J. L. Bodkin, D. Esler, and K. A. Trust. 2010. PCB exposure in sea otters and harlequin ducks in relation to history of contamination by the Exxon Valdez oil spill. Marine Pollution Bulletin 60(6):861-872. doi:10.1016/j.marpolbul.2010.01.005 [Details] [Full Publication]

Esler, D., K. A. Trust, B. E. Ballachey, S. A. Iverson, Tania. Lewis, D. J. Rizzolo, D. M. Mulcahy, A. K. Miles, B. R. Woodin, J. J. Stegeman, J. D. Henderson, and B. W. Wilson. 2010. Cytochrome P4501A biomarker indication of oil exposure in Harlequin Ducks up to 20 years after the Exxon Valdez oil spill. Environmental Toxicology and Chemistry 29(5):1138-1145. doi:10.1002/etc.129 [Details] [Full Publication]

Larson, S., D. H. Monson, B. E. Ballachey, R. J. Jameson, and S. K. Wasser. 2009. Stress related hormones and genetic diversity in sea otters (Enhydra lutris). Marine Mammal Science 25(2):351-372. [Details]

Bodkin, J. L., B. E. Ballachey, G. G. Esslinger, K. A. Kloecker, D. H. Monson, and H. A. Coletti. 2007. Perspectives of an invading predator: Sea otters in Glacier Bay. Pages 133-136 in J. F. Piatt and S. M. Gende, (eds.). Proceedings of the Fourth Glacier Bay Science Symposium. USGS Scientific Investigations Report 2007-5047, 246 p. [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, K. A. Kloecker, G. G. Esslinger, D. H. Monson, and H. A. Coletti. 2005. Sea otter studies in Glacier Bay National Park and Preserve. USGS Alaska Science Center, Anchorage, Annual Report 2004. [Details]

Bodkin, J. L., B. E. Ballachey, K. A. Kloecker, G. G. Esslinger, D. H. Monson, H. A. Coletti, and J. A. Estes. 2004. Sea otter studies in Glacier Bay National Park and Preserve. USGS Alaska Science Center, Anchorage, Annual Report. [Details]

Peterson, C. H., S. D. Rice, J. W. Short, D. Esler, J. L. Bodkin, B. E. Ballachey, and D. B. Irons. 2003. Long-term ecosystem repsonse to the Exxon Valdez oil spill. Science 302(5653):2082-2086. doi:10.1126/science.1084282 [Details] [Full Publication]

Ballachey, B. E., J. L. Bodkin, S. Howlin, A. M. Doroff, and A. H. Rebar. 2003. Correlates to survival of juvenile sea otters in Prince William Sound, Alaska. Canadian Journal of Zoology 81(9):1494-1510. [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, T. A. Dean, and D. Esler. 2003. Patterns and processes of population change in selected nearshore vertebrate predators. Exxon Valdez Oil Spill Restoration Project Final Report, (Restoration Project 00423), U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska. [Details]

Ballachey, B. E., P. W. Snyder, and T. Kondratyuk. 2003. Comparison of cytochrome P450 1A induction in blood and liver cells of sea otters. Exxon Valdez Oil Spill Restoration Project Final Report, (Restoration Project 01534), U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska, 17 p. [Details]

Esler, D., T. D. Bowman, K. A. Trust, B. E. Ballachey, T. A. Dean, S. C. Jewett, and C. E. O'Clair. 2002. Harlequin duck population recovery following the Exxon Valdez oil spill: Progress, process, and constraints. Marine Ecology Progress Series 241:271-286. [Details]

Bodkin, J. L., B. E. Ballachey, T. A. Dean, A. K. Fukuyama, S. C. Jewett, L. L. McDonald, D. H. Monson, C. E. O'Clair, and G. R. VanBlaricom. 2002. Sea otter population status and the process of recovery from the 1989 Exxon Valdez oil spill. Marine Ecology Progress Series 241:237-253. [Details] [Full Publication]

Bodkin, J. L., K. A. Kloecker, H. A. Coletti, G. G. Esslinger, D. H. Monson, and B. E. Ballachey. 2002. Marine Predator Surveys in Glacier Bay National Park and Preserve. National Park Service, Annual Report. [Details]

Esler, D., T. D. Bowman, K. A. Trust, B. E. Ballachey, T. A. Dean, S. C. Jewett, and C. E. O'Clair. 2002. Harlequin duck (Histrionicus histrionicus) perspective. Exxon Valdez Oil Spill Restoration Project Final Report (Restoration Project 99025), Pages 4.1-4.31 in L.E. Holland-Bartels, (ed.). Mechanisms of impact and potential recovery of nearshore vertebrate predators following the 1989 Exxon Valdez oil spill. US Geological Survey, Alaska Biological Science Center, Anchorage. [Details]

Ballachey, B. E., J. L. Bodkin, D. H. Monson, and P. W. Snyder. 2002. Sea otters in Prince William Sound, Alaska: Status of recovery 12 years after the Exxon Valdez oil spill. Pages 168 in K. Davies, A. Delach, L. Epstein, and M. Selden, (eds.), Carnivores 2002. From the mountains to the sea: A conference on carnivore biology and conservation, 17-20 Nov 2002, Monterey, CA. . Defenders of Wildlife [Details]

Monson, D. H., C. R. McCormick, and B. E. Ballachey. 2001. Chemical anesthesia of northern sea otters (Enhydra lutris): Results of past field studies. Journal of Zoo and Wildlife Medicine 32:181-189. [Details]

Bodkin, J. L., B. E. Ballachey, T. A. Dean, A. K. Fukuyama, S. C. Jewett, L. L. McDonald, D. H. Monson, C. E. O'Clair, and G. R. VanBlaricom. 2001. Sea otter (Enhydra lutris) perspective: Mechanisms of impact and potential recovery of nearshore vertebrate predators following the 1989 Exxon Valdez oil spill. Part A. Sea otter population recovery. Exxon Valdez Oil Spill Restoration Project Final Report (Restoration Project 95025-99025), Pages 3A.1-3A.28 in L.E. Holland-Bartels, (ed.). Mechanisms of impact and potential recovery of nearshore vertebrate predators following the 1989 Exxon Valdez oil spill. U.S. Geological Survey, Alaska Biological Science Center, Anchorage. [Details]

Bodkin, J. L., K. A. Kloecker, H. A. Coletti, G. G. Esslinger, D. H. Monson, and B. E. Ballachey. 2001. Marine Predator Surveys in Glacier Bay National Park and Preserve. National Park Service, Annual Report. [Details]

Monson, D. H., D. F. Doak, B. E. Ballachey, A. Johnson, and J. L. Bodkin. 2000. Long-term impacts of the Exxon Valdez oil spill on sea otters, assessed through age-dependent mortality patterns. Pages 6562-6567 in Proceedings: National Academy of Sciences of USA 97(12). [Details] [Full Publication]

Bodkin, J. L., B. E. Ballachey, M. A. Cronin, and K. T. Scribner. 1999. Population demographics and genetic diversity in remnant and translocated populations of sea otters. Conservation Biology 13(6):1378-1385. doi:10.1046/j.1523-1739.1999.98124.x [Details] [Full Publication]

Bickham, J. W., J. A. Mazet, J. Blake, M. J. Smolen, Y. Lou, and B. E. Ballachey. 1998. Flow-cytometric determination of genotoxic effects of exposure to petroleum in mink and sea otters. Ecotoxicology 7(4):191-199. doi:10.1023/A:1008930626834 [Details] [Full Publication]

Jay, C. V., T. L. Olson, G. W. Garner, and B. E. Ballachey. 1998. Response of Pacific walruses to disturbances from capture and handling activities at a haul-out in Bristol Bay, Alaska. Marine Mammal Science 14(4):819-828. doi:10.1111/j.1748-7692.1998.tb00765.x [Details] [Full Publication]

Udevitz, M. S. and B. E. Ballachey. 1998. Estimating survival rates with age-structure data. Journal of Wildlife Management 62(2):779-792. [Details] [Full Publication]

Adkison, M. D., B. E. Ballachey, J. L. Bodkin, and L. E. Holland-Bartels. 1998. Integrating ecosystem studies: A Bayesian comparison of hypotheses. Pages 495-509 in Proceedings: International Symposium on fishery stock assessment models for the 21st century. Alaska Sea Grant College Program [Details]

Bodkin, J. L. and B. E. Ballachey. 1997. Sea Otter. Restoration Notebook. Exxon Valdez Oil Spill Trustee Council, 8 p. [Details] [Full Publication]

Scribner, K. T., J. L. Bodkin, B. E. Ballachey, S. R. Fain, M. A. Cronin, and M. Sanchez. 1997. Population genetic studies of the sea otter (Enhydra lutris): A review and interpretation of available data. Society for Marine Mammology Special Publication 3:197-208. [Details] [Full Publication]

Ballachey, B. E. and K. A. Kloecker. 1997. Hydrocarbons in hair, livers, and intestines of sea otters (Enhydra lutris) found dead along the path of the Exxon Valdez oil spill. Exxon Valdez Oil Spill State/Federal Natural Resources Damage Assessment Status Report, (Marine Mammal Study 6-3), U.S. Fish and Wildlife Service, Anchorage, AK. [Details]

Ballachey, B. E. and K. A. Kloecker. 1997. Hydrocarbon residues in tissues of sea otters (Enhydra lutris) collected following the Exxon Valdez Oil Spill. Exxon Valdez Oil Spill State/Federal Natural Resources Damage Assessment Status Report, (Marine Mammal Study 6-16), U.S. Fish and Wildlife Service, Anchorage, AK. [Details]

Ballachey, B. E. and K. A. Kloecker. 1997. Hydrocarbon residues in tissues of sea otters (Enhydra lutris) collected from southeast Alaska. Exxon Valdez Oil Spill State/Federal Natural Resources Damage Assessment Status Report, (Marine Mammal Study 6-2), U.S. Fish and Wildlife Service, Anchorage, AK. [Details]

Cronin, M. A., J. L. Bodkin, B. E. Ballachey, J. A. Estes, and J. C. Patton. 1996. Mitochondrial-DNA variation among subspecies and populations of sea otters (Enhydra lutris). Journal of Mammalogy 77(2):546-557. [Details] [Full Publication]

Rebar, A. H., B. E. Ballachey, D. L. Bruden, and K. A. Kloecker. 1996. Hematology and clinical chemistry of sea otters captured in Prince William Sound, Alaska following the Exxon Valdez oil spill. Exxon Valdez Oil Spill State/Federal Natural Resources Damage Assessment Status Report, (Marine Mammal Study 6-17), U.S. Fish and Wildlife Service, Anchorage, AK. [Details]

Bodkin, J. L. and B. E. Ballachey. 1996. Monitoring the status of wild sea otter populations: field studies and techniques. Endangered Species Update, University of Michigan 13(12):14-20. [Details] [Full Publication]

Loughlin, T., B. E. Ballachey, and B. Wright. 1996. Overview of studies to determine injury caused by the Exxon Valdez Oil Spill to marine mammals. Pages 798-808 in Proceedings: Exxon Valdez Oil Spill Symposium [Details]

Rebar, A. H., T. P. Lipscomb, R. K. Harris, and B. E. Ballachey. 1995. Clinical and clinical laboratory correlates in sea otter dying acutely in rehabilitation centers. Veterinary Clinical Pathology 32:346-350. [Details]

DeGange, A. R., B. E. Ballachey, and K. Bayha. 1995. A guide for oil spills involving fur-bearing marine mammals. Chapter 14 in T. M. Williams and R. W. Davis, (eds.). Emergency Care and Rehabilitation of Oiled Sea Otters. University of Alaska Press, 300 p. , Anchorage, AK, USA. [Details]

Lipscomb, T. P., R. K. Harris, A. H. Rebar, B. E. Ballachey, and R. J. Haebler. 1994. Pathology of sea otters. Chapter 16 in T. R. Loughlin, (ed.). Marine mammals and the Exxon Valdez. Academic Press, 395 p. , San Diego, CA, USA. [Details]

Mulcahy, D. M. and B. E. Ballachey. 1994. Hydrocarbon residues in sea otters. Chapter 18 in T. R. Loughlin, (ed.). Marine mammals and the Exxon Valdez. Academic Press, 375 p. , San Diego, CA, USA. [Details]

Ballachey, B. E., J. L. Bodkin, and A. R. DeGange. 1994. An overview of sea otter studies. Pages 47-59 in T. R. Loughlin, (ed.). Marine mammals and the Exxon Valdez. Academic Press, San Diego, CA, USA. [Details] [Full Publication]

Lipscomb, T. P., R. K. Harris, R. B. Moeller, J. M. Pletcher, R. J. Haebler, and B. E. Ballachey. 1993. Histopathologic lesions in sea otters exposed to crude oil. Veterinary Pathology 30:1-11. doi:10.1177/030098589303000101 [Details] [Full Publication]

Stegeman, J. J., B. E. Ballachey, J. W. Bickham, B. Hocker, S. Kennedy, H. Thompson, and D. Vethaak. 1993. Implementation of biomaker-based studies. Chapter 3 in D.B. Peakall and L.R. Shugart, (eds.). Strategy for Biomarker Research and Application in the Assessment of Environmental Health. Springer-Verlag, Belgium. [Details]

Ballachey, B. E., J. L. Bodkin, and D. M. Burn. 1990. Assessment of the magnitude, extent, and duration of oil spill impacts on sea otter populations in Alaska. Exxon Valdez Oil Spill State/Federal Natural Resources Damage Assessment Status Report, (Marine Mammal Study 6), U.S. Fish and Wildlife Service, Anchorage, AK, 162 p. [Details]

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://alaska.usgs.gov/staff/staffbio.php?employeeid=120
Page Contact Information: ascweb@usgs.gov
Page Last Modified: November 10 2014 09:43:16.